Patents by Inventor Aart B. van Oort

Aart B. van Oort has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Polymerization process
    Patent number: 4940683
    Abstract: An improved process for the production of linear alternating polymers of carbon monoxide and at least one ethylenically unsaturated hydrocarbon employs a catalyst composition formed from a palladium salt and a phosphino-substituted sulfonic acid.
    Type: Grant
    Filed: February 16, 1989
    Date of Patent: July 10, 1990
    Assignee: Shell Oil Company
    Inventors: Johannes A. Van Doorn, Eit Drent, Petrus W. N. M. Van Leeuwen, Nicolaas Meijboom, Aart B. Van Oort, Richard L. Wife
  • Carbon monoxide/olefin co-polymerization process with phosphino substituted sulfonic acid catalyst
    Patent number: 4855399
    Abstract: An improved process for the production of linear alternating polymers of carbon monoxide and at least one ethylenically unsaturated hydrocarbon employs a catalyst composition formed from a palladium salt and a phosphino-substituted sulfonic acid.
    Type: Grant
    Filed: December 31, 1987
    Date of Patent: August 8, 1989
    Assignee: Shell Oil Company
    Inventors: Johannes A. Van Doorn, Eit Drent, Petrus W. N. M. Van Leeuwen, Nicolaas Meijboom, Aart B. Van Oort, Richard L. Wife
  • Bis-phosphineoxide compounds
    Patent number: 4720589
    Abstract: A process for the preparation of phenylene-bis-phosphineoxide compounds by reacting in a polar aprotic solvent a difluorobenzene compound with a compound of the general formula ##STR1## wherein Me is an alkali metal, R.sup.1 and R.sup.2 each independently represents an alkyl-, aryl-, alkaryl- or aralkyl group, or R.sup.1 and R.sup.2 together form an alkylene group.
    Type: Grant
    Filed: March 17, 1987
    Date of Patent: January 19, 1988
    Assignee: Shell Oil Company
    Inventors: Richard L. Wife, Johannes J. M. Snel, Aart B. Van Oort
  • Process for the preparation of bis-phosphineoxide compounds
    Patent number: 4683338
    Abstract: A process for the preparation of phenylene-bis-phosphineoxide compounds by reacting in a polar aprotic solvent a difluorobenzene compound with a compound of the general formula ##STR1## wherein Me is an alkali metal, R.sup.1 and R.sup.2 each independently represents an alkyl-, aryl-, alkaryl- or aralkyl group, or R.sup.1 and R.sup.2 together form an alkylene group.
    Type: Grant
    Filed: November 13, 1985
    Date of Patent: July 28, 1987
    Assignee: Shell Oil Company
    Inventors: Richard L. Wife, Johannes J. M. Snel, Aart B. Van Oort
  • Process for the preparation of bisphosphine dioxides
    Patent number: 4565892
    Abstract: A process is disclosed for the preparation of 1,2-bis-phosphine oxides by reacting at least one of certain phosphine oxides with certain oxirane compounds in an aprotic solvent and in the presence of a basic compound.
    Type: Grant
    Filed: December 19, 1983
    Date of Patent: January 21, 1986
    Assignee: Shell Oil Company
    Inventors: Richard L. Wife, Aart B. van Oort, Petrus W. N. M. van Leeuwen, Johannes A. van Doorn